1. Sticking your dick in a girls mouth after thoroughly ramming her in the ass
2. Whilst having anal sex, hearing a whistle-like sound due to a small pocket of trapped air inside the asshole
3. Sticking the end actual flute of some sort, preferably steel, up a chicks ass and playing on the mouthpiece of the flute

"I got a little tired of going to band class and seeing this skank think she was good at playing an instrument, so i made her play the steenk floot"